Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GF5242I found under Interrupter Ground by Crouse Hinds Co. The National Stock Number assigned to this part is 5925012699002, and the Federal Supply Class is 5925 Circuit Breakers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like GF5242I.